/**
 * #      1392
 * 名称   最长快乐前缀
 * 链接   https://leetcode-cn.com/problems/longest-happy-prefix
 * 题解   [111](https://leetcode-cn.com/problems/longest-happy-prefix/solution)
 * 通过率 38.1%
 * 难道   困难
 */

